* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: rgb(251, 251, 251);
}

.w {
    width: 1200px;
    margin: 0 auto;
}

li {
    list-style: none;
}

img {
    border: 0;
    vertical-align: middle;
}

button {
    cursor: pointer;
}

a {
    text-decoration: none;
    color: #fff;
}

i,
em {
    font-style: normal;
}

.clearfix:after {
    visibility: hidden;
    clear: both;
    display: block;
    content: ".";
    height: 0;
}

.clearfix {
    *zoom: 1
}

/* 日期小标签 */
.date_label {
    position: relative;
    display: inline-block;
    overflow: hidden;
    padding: 0 30px;
    height: 30px;
    line-height: 30px;
    font-size: 14px;
    font-family: 'TencentSansw7';
    font-style: italic;
    border-top: 1px solid #0052D9;
    color: #0052D9;
    cursor: text;
}

.date_label::before {
    content: '';
    position: absolute;
    right: -65.5px;
    top: 0;
    width: 100%;
    border-top: 1px solid #0052D9;
    transform: rotate(-69deg);
}

.date_label::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 91%;
    border-top: 1px solid #0052D9;
}